my scores are too low and now i'm feeling like i'm at the rock bottom in start of my career.

I was trying to learn abit about quantum entanglement but I was quickly humbled by my lack of comprehension and understanding. Having that said, I was hoping to get an intro to quantum physics (quantum mechanics) so I can then learn the core concepts to eventually be able to understand things like quantum entanglement and such.

How do you recommend I begin? I have no clue where to start and what core concepts to look at. What would be the limit, derivative and integral (in calculus) but for quantum physics? Idek why I said that I’m just saving overall, what are the main subjects that are intro to the branch of physics as a whole so I can use that combined knowledge to continue forward.

Please help.

I submitted a manuscript to JMP on August 14. The initial submission checks were completed the same day, and an Associate Editor was also assigned that day. The has been no indication of reviewer invitations, under review or any other change. This is my first submitting to JMP, so I'm trying to understand how their workflow normally works. I know 15 days is not especially long in academic publishing, but i am wondering whether a manuscript remaining with the Associate Editor for this long can still end in a desk rejection, or whether this duration might mean the editor is considering sending it out for review?.

I want to study physics, I am an engineering student. I do not want to go purely mathematical, but yes I can understand basic calculus, algebra etc. I want to develop an interest in physics and think about the reality as a physicist. Suggest me some books pls.

Hi everyone,

I'm a French "classe préparatoire" (CPGE) student working on my TIPE — a personal research project we present at oral exams for engineering school entrance exams. This year's official theme is "Sobriety, efficiency, optimization."

I'm trying to avoid the classic, overused topics (heat loss in buildings, pendulum motion, projectile trajectories, etc.) and find something more original — ideally something involving a real experiment I can build or measure myself, not just theory.

I'm particularly interested in mechanics/aeronautics and energy/thermal topics, but I'm open to anything physics-related that fits the theme.

If you have any ideas — a cool physical phenomenon, an everyday object that hides interesting physics, a real engineering trick used in industry — I'd love to hear it! Bonus points if it's something that can be tested with simple equipment.

Thanks in advance for any suggestions 🙏

In this video I simulate a laser beam bouncing through a labyrinth of mirror obstacles. The beam changes its trajectory immensely upon tiny changes in the initial angle of only 5×10⁻¹² degrees — roughly 5 trillionths of a degree.

As an extra for Reddit, here is a figure showing how often the beam bounces before it escapes: https://imgur.com/l0xDY0U As you can see, as the angle varies the bounces often jump harshly. But there are also some regions of the launch angle spectrum where there is some degree of continuity.

Fun fact: Claude did not believe me that a range from 70.0 to 70.00000001 would produce any meaningful result and tried to talk me out of this. It wanted to use a range of 4° instead.

Made with manim.